Fire-fighting fan with noise reduction function

Abstract

The utility model relates to the technical field of fire-fighting fans, and discloses a fire-fighting fan with a noise reduction function, which comprises a fan base, the left side and the right side of the top of the fan base are fixedly connected with fixing rings I, the inner walls of the fixing rings I are fixedly connected with rubber pads, and the inner walls of the rubber pads are fixedly connected with a fan shell. A plurality of fixing arms are fixedly connected to the inner wall of the fan shell, and springs are fixedly connected to the inner walls of the multiple fixing arms. According to the utility model, when the brake motor works, the vibration generated by the brake motor is transmitted to the fixed ring II and then transmitted to the sliding arm connected to the fixed ring II, the sliding arm can move by virtue of the spring, so that part of vibration caused by the brake motor is relieved, and the residual vibration force is continuously transmitted to the fan shell; and then the noise is absorbed by the rubber pad fixed on the inner wall of the fixed ring I and the shock pad fixed at the bottom of the fan base, and the noise reduction effect on the device is realized by matching with other shock absorption devices.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fan technical field especially, it relates to a fire fan with noise reduction function. BACKGROUND

[0002] Fire fan is a kind of equipment playing a vital role in the field of fire safety, it is mainly used for the dense smoke and harmful gas in building when fire occurs, rapidly discharging, creates favorable conditions for personnel evacuation and fire rescue, fire fan has the characteristics such as high temperature resistance, corrosion resistance, can stably run in the harsh fire environment, effectively guarantees the life safety of people and reduces property loss, is the indispensable important component in building fire safety system.

[0003] After receiving fire signal, control system starts motor, impeller high-speed rotation produces powerful airflow, forms negative pressure, this negative pressure promotes the smoke and harmful gas in building to be inhaled into fan, then is discharged to outdoor through air duct, simultaneously, the design of fire fan can withstand high temperature environment, ensures continuous operation in fire, and its operating speed can be adjusted according to actual situation, to meet the smoke exhaust demand of different scale fires, provides clear vision and safe air environment for personnel evacuation and fire rescue action.

[0004] Fire fan when working, the internal motor of running process can produce greater vibration, drives the vibration of the whole device, to cause noise, this noise can also spread along with the connecting place of the device, causes serious noise pollution to surrounding environment, interferes with people's normal life and work. UTILITY MODEL CONTENT

[0005] In order to make up for the above insufficient, the utility model provides a fire fan with noise reduction function, aims at improving the problem of excessive noise of fire fan in prior art when running.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a fire-fighting fan with noise reduction function, including fan base, the top left and right sides of fan base are all fixedly connected with fixed ring no.

[0007] As a further description of the above technical solution:

[0008] The cooling mechanism comprises a motor shell, the motor shell is fixedly connected to the inner wall of the fixed ring no.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the motor shell is fixedly connected with a brake motor, and a threaded groove is formed in the output end of the brake motor.

[0011] As a further description of the above technical solution:

[0012] The output end of the brake motor is fixedly connected with a fan, and the left side of the brake motor is threadedly connected with a fixing screw.

[0013] As a further description of the above technical solution:

[0014] A plurality of guide grooves are formed in the right side of the fan, and a conical block is fixedly connected to the left side of the fan.

[0015] As a further description of the above technical solution:

[0016] A threaded hole is formed in the inner wall of the fan, the output end of the brake motor penetrates through the threaded hole and is threadedly connected with the fixing screw.

[0017] As a further description of the above technical solution:

[0018] A controller is fixedly connected to the top of the fan base, and a power indicator is fixedly connected to the front side of the fan base.

[0019] As a further description of the above technical solution:

[0020] Bolt holes are provided at the four corners of the outer wall of the fan base, and shock-absorbing pads are fixedly connected to the bottom of the fan base.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the brake motor is working, the vibration it generates will be transmitted to the second fixed ring, and then to the sliding arm connected to the second fixed ring. The sliding arm can move by the spring, which reduces some of the vibration caused by the brake motor. The remaining vibration force will continue to be transmitted to the fan casing, and then absorbed by the rubber pad fixed to the inner wall of the first fixed ring and the shock-absorbing pad fixed to the bottom of the fan base. Together with other shock-absorbing devices, the noise reduction effect of the device is achieved.

[0023] 2. In this utility model, when the fan rotates, the air enters the interior of the fan housing from the left side. Subsequently, some of the air will enter from the air inlet under the guidance of the guide plate and then be discharged from the air outlet on the right side, carrying away some of the heat released by the brake motor. When the temperature of the motor housing is too high, the cooling box is activated, which circulates the coolant inside the water pipe and cools it down, so that the motor housing is cooled down quickly, and the internal brake motor is kept at a normal working temperature, avoiding its shortened service life due to high temperature. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a fire-fighting fan with noise reduction function proposed in this utility model;

[0025] Figure 2 This is a structural exploded view of a fire-fighting fan with noise reduction function proposed in this utility model;

[0026] Figure 3 This is a partial structural exploded view of a fire-fighting fan with noise reduction function proposed in this utility model;

[0027] Figure 4 This is a split diagram of the cooling mechanism of a fire-fighting fan with noise reduction function proposed in this utility model.

[0028] Figure 5 This is a side view of a fire-fighting fan with noise reduction function proposed in this utility model;

[0029] Figure 6The utility model provides a fixed arm structure section view of fire fighting fan with noise reduction function.

[0030] Legend:

[0031] 1, fan base; 2, cooling mechanism; 201, guide plate; 202, air outlet; 203, air inlet; 204, cooling box; 205, water pipe; 206, cooling pipeline; 207, motor shell; 3, fan shell; 4, rubber pad; 5, fixed ring one; 6, fixed arm; 7, sliding arm; 8, spring; 9, fixed ring two; 10, limiting strip; 11, sound-absorbing cotton; 12, brake motor; 13, threaded groove; 14, fixed screw; 15, threaded hole; 16, fan; 17, guide groove; 18, conical block; 19, power tag; 20, bolt hole; 21, shock pad; 22, connecting flange; 23, controller; 24, protective cover. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: a fire fighting fan with noise reduction function, including fan base 1, the top left and right sides of fan base 1 are fixedly connected with fixed ring one 5, the inner wall of fixed ring one 5 is fixedly connected with rubber pad 4, the inner wall of rubber pad 4 is fixedly connected with fan shell 3, the inner wall of fan shell 3 is fixedly connected with multiple fixed arms 6, the inner wall of multiple fixed arms 6 is fixedly connected with spring 8, the outer wall of spring 8 is fixedly connected with sliding arm 7, the outer wall of sliding arm 7 is fixedly connected with limiting strip 10, the outer wall of sliding arm 7 is consistent with the inner wall of fixed arm 6, the adjacent side of multiple sliding arms 7 is fixedly connected with fixed ring two 9, the outer wall of fan shell 3 is fixedly connected with sound-absorbing cotton 11, the left and right sides of the outer wall of fan shell 3 are fixedly connected with connecting flange 22, the left side of fan shell 3 is fixedly connected with protective cover 24, the right side of fixed ring two 9 is provided with cooling mechanism 2, and cooling mechanism 2 is used for the function of cooling motor.

[0034] Specific, the inner wall of the fixed ring 5 is provided with rubber pad 4, which is installed on the fan base 1, used to fix the fan shell 3, the fixed arm 6 is installed on the inner wall of the fan shell 3, and the inner wall is slidably connected with the sliding arm 7, the bottom of the sliding arm 7 and the inner wall bottom of the fixed arm 6 are fixedly connected with the spring 8, the limiting strip 10 on the sliding arm 7 can limit the sliding range of the sliding arm 7 in the fixed arm 6, the adjacent section of the sliding arm 7 is fixedly connected with the fixed ring 2, when the brake motor 12 works, the vibration generated by itself will be transmitted to the fixed ring 2, and then transmitted to the sliding arm 7 connected with the fixed ring 2, the sliding arm 7 can move by the spring 8, the limiting strip 10 makes the sliding arm 7 only slide in a small range in the fixed arm 6, realizes the slow down of part of the vibration brought by the brake motor 12, meanwhile, the normal work of the brake motor 12 is not affected, the remaining vibration force will continue to be transmitted to the fan shell 3, and then be absorbed by the rubber pad 4 fixed in the inner wall of the fixed ring 1 and the shock pad 21 fixed on the bottom of the fan base 1, the sound absorbing cotton 11 wrapped on the fan shell 3 can be used to reduce the noise generated by the fan 16.

[0035] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: cooling mechanism 2 includes motor shell 207, motor shell 207 fixedly connected in the inner wall of fixed ring 2, the outer wall left side of motor shell 207 is fixedly connected with guide plate 201, the left side of motor shell 207 is provided with air inlet 203, the outer wall of motor shell 207 is provided with air outlet 202, air inlet 203 is communicated with air outlet 202, the right side of the outer wall of motor shell 207 is provided with cooling pipeline 206, the right side of motor shell 207 is fixedly connected with cooling box 204, the left side of cooling box 204 is fixedly connected with water pipe 205, the outer wall of water pipe 205 is matched with the inner wall of cooling pipeline 206;

[0036] Specific, the inner wall of the motor housing 207 is provided with a ventilation duct and a cooling duct 206, the air inlet 203 is arranged at the left side of the ventilation duct, the air outlet 202 is arranged at the right side, the guide plate 201 is fixed at the left side of the motor housing 207, when the fan 16 rotates, the wind enters the inside of the fan housing 3 from the left side, then part of the wind enters from the air inlet 203 under the guidance of the guide plate 201, then is discharged from the air outlet 202, and carries away part of the heat released by the brake motor 12; the cooling duct 206 arranged at the left side of the motor housing 207 is matched with the water pipe 205 connected to the cooling box 204, the water pipe 205 is placed on the inner wall of the cooling duct 206; when the temperature of the motor housing 207 is too high, the cooling box 204 is started, the cooling liquid in the water pipe 205 is circulated and cooled, the temperature of the motor housing 207 is rapidly reduced, and the brake motor 12 in the inside is kept at a normal working temperature, so that the working life of the brake motor 12 is not shortened due to high temperature.

[0037] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: the inner wall of motor housing 207 is fixedly connected with brake motor 12, the output end of brake motor 12 is provided with thread groove 13, the output end outer wall of brake motor 12 is fixedly connected with fan 16, the left side of brake motor 12 is threadedly connected with fixed screw 14, the right side of fan 16 is provided with multiple guide grooves 17, and the left side of fan 16 is fixedly connected with conical block 18.

[0038] Specifically, the right thread groove 13 is arranged on the output end of the brake motor 12, the output end penetrates the threaded hole 15 arranged in the inside of the fan 16, and the fan 16 is fixed on the output end of the brake motor 12 in cooperation with the fixed screw 14, the multiple guide grooves 17 arranged on the fan 16 can guide part of the air volume into the air inlet 203 when the fan 16 rotates, and assist the motor housing 207 to dissipate heat, and the left side of the fan 16 is connected with the right conical block 18 to reduce the resistance when the air enters.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: the inner wall of fan 16 is provided with threaded hole 15, the output end of brake motor 12 penetrates threaded hole 15 and is threadedly connected with fixed screw 14, the top of fan base 1 is fixedly connected with controller 23, the front side of fan base 1 is fixedly connected with power plate 19, the outer wall of fan base 1 is provided with bolt hole 20 at four corners, and the bottom of fan base 1 is fixedly connected with damping pad 21.

[0040] Specifically, the controller 23 on the fan base 1 facilitates the worker to control the power of the device to adapt to different working environments, and can also remotely control the start and stop of the device, the power meter 19 is used to prompt the worker the power of the device, the bolt holes 20 on the four corners of the fan base 1 are used to fix the fan on the ground, and the shock pad 21 can share part of the vibration brought by the brake motor 12.

[0041] Working principle: when the brake motor 12 works, the vibration generated by itself will be transmitted to the fixed ring 9, and then to the sliding arm 7 connected to the fixed ring 9, the sliding arm 7 can move by relying on the spring 8, the limiting strip 10 makes the sliding arm 7 only slide in a small range inside the fixed arm 6, so as to slow down part of the vibration brought by the brake motor 12, without affecting the normal work of the brake motor 12, the remaining vibration will continue to be transmitted to the fan shell 3, and then be absorbed by the rubber pad 4 fixed on the inner wall of the fixed ring 1 and the shock pad 21 fixed on the bottom of the fan base 1, the sound-absorbing cotton 11 wrapped on the fan shell 3 can be used to reduce the noise generated by the fan 16 when rotating, and cooperate with the remaining shock-absorbing devices to realize the noise reduction effect of the device.

[0042] In addition, when the fan 16 rotates, the wind enters the inside of the fan shell 3 from the left side, and then part of the wind will enter from the air inlet 203 under the guidance of the guide plate 201, and then be discharged from the right air outlet 202, taking away part of the heat released by the brake motor 12, when the temperature of the motor shell 207 is too high, the cooling box 204 starts to make the cooling liquid in the water pipe 205 circulate and cool, so that the motor shell 207 cools down quickly, and the brake motor 12 inside keeps normal working temperature, avoiding the shortening of the working life due to high temperature.

[0043] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A fire-fighting fan with noise reduction function, comprising a fan base (1), characterized in that: The top left and right sides of the fan base (1) are fixedly connected with a fixed ring I (5), the inner wall of the fixed ring I (5) is fixedly connected with a rubber pad (4), the inner wall of the rubber pad (4) is fixedly connected with a fan shell (3), the inner wall of the fan shell (3) is fixedly connected with a plurality of fixed arms (6), the inner wall of the plurality of fixed arms (6) is fixedly connected with a spring (8), the outer wall of the spring (8) is fixedly connected with a sliding arm (7), the outer wall of the sliding arm (7) is fixedly connected with a limiting strip (10), the outer wall of the sliding arm (7) is consistent with the inner wall of the fixed arm (6), the adjacent side of the plurality of sliding arms (7) is fixedly connected with a fixed ring II (9), the outer wall of the fan shell (3) is fixedly connected with sound-absorbing cotton (11), the left and right sides of the outer wall of the fan shell (3) are fixedly connected with a connecting flange (22), the left side of the fan shell (3) is fixedly connected with a protective cover (24), the right side of the fixed ring II (9) is provided with a cooling mechanism (2), and the cooling mechanism (2) is used for cooling the motor.

2. The fire-fighting fan with noise reduction function according to claim 1, characterized in that: The cooling mechanism (2) comprises a motor shell (207), the motor shell (207) is fixedly connected to the inner wall of the fixed ring II (9), the outer wall left side of the motor shell (207) is fixedly connected with a guide plate (201), the left side of the motor shell (207) is provided with an air inlet (203), the outer wall of the motor shell (207) is provided with an air outlet (202), the air inlet (203) is communicated with the air outlet (202), the right side of the outer wall of the motor shell (207) is provided with a cooling pipeline (206), the right side of the motor shell (207) is fixedly connected with a cooling box (204), the left side of the cooling box (204) is fixedly connected with a water pipe (205), and the outer wall of the water pipe (205) is consistent with the inner wall of the cooling pipeline (206).

3. The fire-fighting fan with noise reduction function according to claim 2, characterized in that: The inner wall of the motor shell (207) is fixedly connected with a brake motor (12), and a threaded groove (13) is formed in the output end of the brake motor (12).

4. The fire-fighting fan with noise reduction function according to claim 3, characterized in that: The output end outer wall of the brake motor (12) is fixedly connected with a fan (16), and the left side of the brake motor (12) is threadedly connected with a fixed screw (14).

5. The fire-fighting fan with noise reduction function according to claim 4, characterized in that: A plurality of guide grooves (17) are formed in the right side of the fan (16), and the left side of the fan (16) is fixedly connected with a conical block (18).

6. The fire-fighting fan with noise reduction function according to claim 4, characterized in that: A threaded hole (15) is formed in the inner wall of the fan (16), the output end of the brake motor (12) penetrates through the threaded hole (15) and is threadedly connected with the fixed screw (14).

7. The fire-fighting fan with noise reduction function according to claim 1, characterized in that: The top of the fan base (1) is fixedly connected with a controller (23), and the front side of the fan base (1) is fixedly connected with a power plate (19).

8. The fire-fighting fan with noise reduction function according to claim 1, characterized in that: Bolt holes (20) are formed in the four corners of the outer wall of the fan base (1), and a damping pad (21) is fixedly connected to the bottom of the fan base (1).

Images